尽管使用了@RequestMapping（“**”），但在Spring Boot中提供静态内容

Question

null

我也尝试了一些反匹配，但它不仅不起作用，它也感觉非常非常脏（整个项目可能不是最优的，所以这是说了很多）。

注意：您可以在评论中建议实现这一点的更好方法。请记住，虽然我总是开放的改进建议，这不是我的问题。

@RestController
public class ProxyController {

    @Value("${monitored.url.base}") // "http://localhost:8090"
    private String redirectBase;


    @RequestMapping(value = "**", method = {RequestMethod.POST, RequestMethod.PUT})
    public ProxiedResponse proxifyRequestsWithBody(HttpServletRequest request, @RequestHeader HttpHeaders headers, @RequestBody Object body) throws URISyntaxException {
        return proxifyRequest(request, headers, body);
    }

    @RequestMapping(value = "**")
    public ProxiedResponse proxifyRequestsWithoutBody(HttpServletRequest request, @RequestHeader HttpHeaders headers) throws URISyntaxException {
        return proxifyRequest(request, headers, null);
    }

    private ProxiedResponse proxifyRequest(HttpServletRequest request, @RequestHeader HttpHeaders headers, @RequestBody Object body) throws URISyntaxException {
        final RequestEntity<Object> requestEntity = convertToRequestEntity(request, headers, body);

        // call remote service
        final ResponseEntity<Object> proxied = restTemplate.exchange(requestEntity, Object.class);

        // Return service result + monitoring information
        final ProxiedResponse response = new ProxiedResponse();
        response.setProxied(proxied.getBody());
        // set additional information

        return response;
    }

    // Won't work properly for POST yet
    private <T> RequestEntity<T> convertToRequestEntity(HttpServletRequest request, HttpHeaders headers, T body) throws URISyntaxException {
        // Build proxied URL
        final StringBuilder redirectUrl = new StringBuilder(redirectBase).append(request.getRequestURI());
        final String queryString = request.getQueryString();
        if (queryString != null) {
            redirectUrl.append("?").append(queryString);
        }

        // TODO enhancement: transmit headers and request body to make this a real proxy
        final HttpMethod httpMethod = HttpMethod.valueOf(request.getMethod());
        return new RequestEntity<>(body, headers, httpMethod, new URI(redirectUrl.toString()));
    }
}

@Configuration // adding @EnableWebMvc did not solve the problem
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {

    private static class StaticResourcesHandlerInterceptor extends HandlerInterceptorAdapter {
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
            final String requestURI = request.getRequestURI();
            if (requestURI == null || "/".equals(requestURI) || "/index.html".equals(requestURI) || requestURI.startsWith("/assets")) {
                return super.preHandle(request, response, null);
            }

            return super.preHandle(request, response, handler);
        }
    }

    @Autowired
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new StaticResourcesHandlerInterceptor()).addPathPatterns("/**");
    }
}

Answer 1

您可以将路径拆分为一个通配符和一个命名的路径变量，该变量必须匹配一个负的前瞻正则表达式。

@requestmapping（“/{variable：（？！static）.*}/**”）

然后，您可以使用@PathVariable String variable作为您的controller方法的参数，以获得变量的值，如果您需要传递它。